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| Effects of a group-based exercise and educational program on physical performance and disease self-management in rheumatoid arthritis: a randomized controlled study |
| Breedland I, van Scheppingen C, Leijsma M, Verheij-Jansen NP, van Weert E |
| Physical Therapy 2011 Jun;91(6):879-893 |
| clinical trial |
| 7/10 [Eligibility criteria: Yes; Random allocation: Yes; Concealed allocation: Yes; Baseline comparability: Yes; Blind subjects: No; Blind therapists: No; Blind assessors: Yes; Adequate follow-up: Yes; Intention-to-treat analysis: No; Between-group comparisons: Yes; Point estimates and variability: Yes. Note: Eligibility criteria item does not contribute to total score] *This score has been confirmed* |
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BACKGROUND: Evidence supports the use of educational and physical training programs for people with rheumatoid arthritis (RA). OBJECTIVE: The purpose of this study was to evaluate the effects of a group-based exercise and educational program on the physical performance and disease-self-management of people with RA. DESIGN: This was a randomized controlled trial. SETTING: The study was conducted at a rehabilitation center in the Netherlands. PARTICIPANTS: Thirty-four people diagnosed with RA participated in the study. Participants were randomly assigned to either an intervention group (n = 19) or a waiting list control group (n = 15). INTERVENTION: The intervention in this study was an 8-week, multidisciplinary, group therapy program for people with RA, consisting of physical exercise designed to increase aerobic capacity and muscle strength (force-generating capacity) together with an educational program to improve health status and self-efficacy for disease-self-management. MEASUREMENTS: The main outcome measures were maximum oxygen uptake (VO2max), muscle strength of the elbow and knee flexors and extensors, health status, and perceived self-efficacy. All data were recorded before intervention in week 1, after intervention in week 9, and at follow-up in week 22. RESULTS: The intervention group showed significant improvement (12.1%) in VO2max at week 9 compared with the control group (-1.7%). Although significant within-group changes were found over time for muscle strength of the upper and lower extremities and health status that favored the intervention group, no between-group changes were found regarding these outcomes. LIMITATIONS: An important limitation was the small number of participants included in our study, which may have resulted in a lack of power. CONCLUSIONS: The present group-based exercise and educational program for people with RA had a beneficial effect on aerobic capacity but not on muscle strength, health status, or self-efficacy.
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